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Sam Ravnborga00736e2008-06-19 20:26:19 +02001/* fpumacro.h: FPU related macros.
2 *
3 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
5 */
6
7#ifndef _SPARC64_FPUMACRO_H
8#define _SPARC64_FPUMACRO_H
9
10#include <asm/asi.h>
11#include <asm/visasm.h>
12
13struct fpustate {
14 u32 regs[64];
15};
16
17#define FPUSTATE (struct fpustate *)(current_thread_info()->fpregs)
18
19static inline unsigned long fprs_read(void)
20{
21 unsigned long retval;
22
23 __asm__ __volatile__("rd %%fprs, %0" : "=r" (retval));
24
25 return retval;
26}
27
28static inline void fprs_write(unsigned long val)
29{
30 __asm__ __volatile__("wr %0, 0x0, %%fprs" : : "r" (val));
31}
32
33#endif /* !(_SPARC64_FPUMACRO_H) */